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5 Best Vitamin C Supplements for Immune Support

5 Best Vitamin C Supplements

Vitamin C is one of the most important micronutrients for boosting your immune system. It helps repair the damaged tissues in your body and strengthens your system enough to fight invading organisms.

Vitamin C is a strong antioxidant. It prevents oxidative stress and cellular damage by free radicals in the body. By preventing cellular damage, vitamin C reduces the risk of cancer and diseases of several organs in your body, and also slows the aging process.

Ranking the 5 Best Vitamin C Supplements in 2021:

1. Optimunity Liposomal Vitamin C

2. Nature’s Bounty Vitamin C

3. NutriFlair Liposomal Vitamin C

4. DACHA Liposomal Vitamin C

5. NOW Supplements, Vitamin C-1000

Studies have shown that Vitamin C also decreases the length of cold and flu symptoms by days, even though it may not prevent you from catching a cold.

The most common source of vitamin C is fruits. You’ll find it in potatoes, tomatoes, citrus fruits like lime and oranges, green and red bell peppers, Brussels sprouts, broccoli, and kiwifruit among others.

However, not so many people include fruits in their diet daily. Also, fruits and vegetables can lose vitamin C when heated or stored in warm areas for a long period. So, some people who eat these fruits and vegetables still don't have the maximum amount of vitamin C needed for a healthy immune system.

There’s still room for improvement.

One of the best ways to get your RDI of vitamin C daily is by taking supplements. This way, even when you’re not having enough fruits and vegetables in your diet, or even none at all, you’ll still have enough vitamin C to keep you healthy.

There are thousands of supplements available on the market. They list similar benefits, so you never know which is best for you. To help you select the right immune support supplement, our researchers went through hundreds of products and selected the best 5 based on the composition, properties, side effects, and benefits they confer.

Let’s get started with the best of All.

Optimunity Liposomal Vitamin C

Optimunity Liposomal Vitamin C is our best vitamin C supplement for strengthening the immune system especially during these covid times. It contains 1500mg vitamin C that is quickly absorbed into your bloodstream. The highest amount of vitamin C you should take daily is 2,000mg. Optimunity Liposomal Vitamin C gives you almost the highest amount you can get daily.

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Unlike the traditional vitamin C supplements, Optimunity vitamin C doesn’t degrade when it gets into the stomach. It is not affected by stomach acids or excreted. Instead, it uses liposomes to protect the vitamin C, so it is completely absorbed into the bloodstream and transported to the cells that need it.

It offers full protection from pathogenic microorganisms such as viruses and bacteria and protects you from fevers and flu.


The ingredients in Optimunity Liposomal Vitamin C include:

- Fat-soluble proprietary liposomal complex made up of Ascorbyl Oleate, Ascorbyl Palmitate, Cetyl Ascorbate, Phosphatidylcholine, and Sunflower lecithin

- Vegetable cellulose (capsules)

- Magnesium vegetable stearate.

- Rice flour.

All the ingredients are non-GMO, soy-free, gluten-free, and contain no artificial preservatives.


1. It is a potent immune booster.

2. Prevents respiratory illnesses and other diseases.

3. Reduces the risks of cancer, heart diseases, stroke, and arthritis.

4. Regulates blood pressure levels.

5. Increases your energy levels, allowing you to exercise better.

6. Has strong antioxidant and anti-inflammatory properties.

7. Promotes healthy aging.

8. Improves memory and brain function.

9. Promotes healthy skin.

Side Effects

Optimunity has no known side effects. Unlike other vitamin C supplements that cause stomach upsets when taken in high quantities, Optimunity users haven’t recorded any negative side effects when consuming the 1,500mg vitamin C daily.

How to Use Optimunity Liposomal Vitamin C

A bottle of Optimunity contains 120 vegetable capsules (2 capsules per serving). So, each bottle will last you for 2 months.

The best way to take this supplement is with a glass of water during your meal.

Customers have observed increased energy levels only days after taking the supplement. However, it is recommended to take the supplement for at least 3 months.

Where to Get Optimunity Liposomal Vitamin C

You can get this premium supplement on the official Optimunity website. The starter pack costs only $39.95, while the Optimunity Love and Optimunity Max packages cost $98.95 and $189.95 respectively.

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2. Nature’s Bounty Vitamin C

Nature’s Bounty Vitamin C provides you with only 500mg of vitamin C per tablet. This is not up to the amount of vitamin C you get from Optimunity. But, Nature’s Bounty Vitamin C has been used by over 40,000 people who have all recorded positive results from taking the supplement.

This Vitamin C supplement improves the action of white blood cells in the body. It also has strong antioxidant properties and prevents the premature aging of cells.

According to the company, they are committed to safety and purity in all their products. This vitamin C supplement is not an exception. All the ingredients used are non-GMO, gluten-free, sugar-free, and contain no preservatives, artificial coloring, or sweeteners.

Let’s take a look at the ingredients used to make this immune-boosting supplement.


Nature’s Bounty Vitamin C contains:

- 500mg Vitamin C (Ascorbic acid).

- <2% silica.

- Vegetable cellulose.

- Vegetable stearic acid.

- Vegetable magnesium stearate.


- Prevents the aging of the skin and other cells in the body.

- Boosts the immune system.

- Shortens recovery time when you get the flu or a bad cold.

Side Effects

There are no known side effects of Nature’s Bounty Vitamin C. However, the pills are too large and difficult to swallow, and it doesn’t taste great.

How to Use Nature’s Bounty Vitamin C

Take a tablet daily during your meal. To make it easier to swallow, take it with some water before you swallow, and during ingestion.

Where to Get Nature’s Bounty Vitamin C

You can get Nature’s Bounty Vitamin C from Official website or from Amazon for $16.99.

3. NutriFlair Liposomal Vitamin C

NutriFlair is a liposomal vitamin C supplement, just like Optimunity. It also provides your body with a high amount of vitamin C (1,600mg), most of which is retained for use by your cells.

This fat-soluble vitamin C supplement is easy to swallow and provides your body with many amazing benefits including strengthening your immune and nervous system.

Many people enjoy taking this supplement because it provides enough benefits without breaking the bank.

All the ingredients used are also non-GMO, gluten-free, soy-free, dairy-free, and have been tested by third-party for purity, quality, and potency.

The brand is trusted by thousands of people worldwide, and they always deliver top-quality products.


The ingredients in NutriFlair Liposomal Vitamin C include:

- A blend of Ascorbyl Palmitate, Ascorbyl Oleate, Sunflower Lecithin, Phosphatidylcholine, and Cetyl Ascorbate.

- Vegetable capsule (Non-GMO plant cellulose).


- Increases collagen production, resulting in better nails and skin.

- Promotes the activity of immune cells, and increases the chances of fighting pathogenic microorganisms.

- Supports healthy brain and heart function.

- Decreases muscle soreness.

- Improves blood circulation and prevents high blood pressure.

- Increases calcium and iron absorption,

- Lightens your mood.

Side Effects

There are no known side effects of NutriFlair Liposomal Vitamin C.

How to Use NutriFlair Liposomal Vitamin C

A bottle of NutriFlair Liposomal Vitamin C contains 180 capsules. Take 2 capsules daily with a glass of water during your meal, or as directed by your healthcare professional.

The 2 capsules will provide you with 1,600mg of vitamin C (800mg each).

Do not use more than the recommended dose. If you are under the age of 18, a pregnant woman, a nursing mother, or have a known medical condition, contact your doctor or physician before use.

Where to Get NutriFlair Liposomal Vitamin C

You can get NutriFlair Liposomal Vitamin C on the official website or Amazon for $18.95.

4. DACHA Liposomal Vitamin C

DACHA vitamin C also uses liposomal technology to deliver the vitamin to your body, increasing the absorption and retention rate.

It provides you with 1,500mg of vitamin C, just like Optimunity. This improves your immune system and overall strength and provides other health benefits we’ll be seeing below.

Over 10,000 people have used this supplement and given positive reviews. However, a few people have mentioned not seeing any positive changes even after using the supplement.

Nevertheless, it remains one of the best vitamin C supplements for immune support available on the market.


Proprietary liposomal vitamin C complex is the main ingredient in DACHA Liposomal vitamin C. This complex is made of Ascorbyl Oleate, Ascorbyl Palmitate, Cetyl Ascorbate, Phosphatidyl Choline, and Sunflower lecithin.

Sunflower lecithin and phosphatidylcholine help to create the liposomal environment that allows for better absorption by the body.

The supplement also contains vegetable cellulose (veggie capsules).


1. Helps prevent infections and diseases by boosting the immune system.

2. Increases collagen production that keeps the skin healthy.

3. Prevents high blood pressure.

4. Antioxidant and anti-inflammatory properties prevent cellular damage and cancer of the heart and other organs in your body.

5. Improves the utilization of iron and folic acid.

Side Effects

DACHA Liposomal Vitamin C may have some side effects on people that are highly sensitive to any of the ingredients. It is also not good for pregnant women.

How to Use DACHA Liposomal Vitamin C

A bottle of DACHA Liposomal Vitamin C contains 200 capsules.

Take 1 capsule in the morning before your meal, and another capsule at midday. Swallow the capsule with an 8oz glass of water.

Where to Get DACHA Liposomal Vitamin C

DACHA Liposomal Vitamin C is available on the official website or Amazon for $17.97. The company gives a refund at any time to anyone who isn’t happy with the product.

5. NOW Supplements, Vitamin C-1000

The NOW Supplements Vitamin C is not a liposomal vitamin C supplement. However, it provides your body with 1,000mg of vitamin C per serving.

This supplement increases your body’s collagen production, improving the bones, skin, and joint health. It also has adequate antioxidant properties, ensuring that your cells, tissues, and organs remain healthy and are not damaged by free radicals that are formed during your body’s metabolism.

Let’s see the raw materials used to produce NOW Supplements Vitamin C – 1000.


The ingredients in NOW Supplements, Vitamin C-1000 include:

- Vitamin C (Ascorbic acid).

- 25mg Rosehips powder (Rosa canina).

- 25mg Citrus bioflavonoid complex.

- Microcrystalline cellulose.

- Magnesium stearate (vegetable source).

- Vegetable coating.

This supplement is vegan-friendly and contains no soy, sugar, gluten, wheat, egg, shellfish, milk, yeast, starch, or any artificial preservatives.


1. Protects the body from infection by pathogenic microorganisms by boosting the immune system.

2. Promotes healthy skin, nails, and bones.

3. Improves heart health.

4. Regulates your blood pressure.

5. Prevents cellular damage by free radicals.

6. Increases body energy levels.

Side Effects

NOW Supplements Vitamin C-1000 could cause stomach upset if the dosage is not followed.

How to Use NOW Supplements, Vitamin C-1000

Take only 1 tablet daily with a glass of water.

After usage, store in a cool, dry place.

This supplement is for adult use only. Also, pregnant and nursing women should contact their physician before taking this medication.

Where to Get NOW Supplements, Vitamin C-1000

You can get NOW Supplement Vitamin C-1000 on the Amazon website. The supplement comes in two different packages. The 100-tablet pack costs $12.99 while the 250-tablet pack costs $27.99 per bottle.

Bottom Line

Taking Vitamin-C supplements is a sure way to improve your immune system. Even though you’re not getting enough from your diet, you still meet your RDI of vitamin C and don’t have to worry about falling ill.

Of all the vitamin C supplements listed above, Optimunity Liposomal Vitamin C has the best properties and is the most-trusted by customers. It provides your body with 1,500mg vitamin C with effective liposome protection that allows for full utilization by your cells.

As you get one of the vitamin C supplements listed above, remember that a healthy immune system does not come from taking these supplements alone. Improve your diet, sleep well, and exercise regularly. Optimunity Liposomal Vitamin C.

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